Though not technically a food, tobacco leaves are often put inside people’s bodies through smoking and, of late, increasingly being used as a food flavoring.
It’s no surprise that tobacco causes cancer. A recent study showed that smokers are more exposed to overall risk of cancer than non-smokers. While not all studies found similar results, the association between the two is well-established.
The same applies to rheumatoid arthritis as smoking represents an extrinsic factor for its development and severity. Indeed, cigarette smoking has multiple negative effects on the immune system, notably degraded joints and connective tissue problems. Moreover, recent advances suggest that anti-TNF drugs used to treat arthritis rheum are made less effective because of smoking.